Black is a great color to help the pool look more natural. Downside is, it shows everything that falls on it, such as leaves, dirt, etc.. Upside is, you get a morror effect of things beyond/behind your pool. You can have a lot of fun with this, using lighting, art, or plant placement. Of course, if you have a lot of green trees, and other plant material behind it, its going to look green. This is one of my favourite things about these pools, thier reflectivity.

Black epoxy

Thanks for your prompt reply. I'm convinced. Now I'll work on the family.

You are very welcome. I will try and get a few images up, within the next few weeks, to show the difference.